I actually did have trouble with that bus image. However it’s not as though adults make this trade-off for no gain.
Ask a 6-year old to spot a bird in a tree a hundred feet away and they’ll be looking around everywhere for it simply because they don’t know what they’re looking for. An adult knows exactly what to look for: a dark shape in the branches moving separately from the motion of the branches in the wind behind it, briefly silhouetted against the sky while those same branches move, probably 30 ft or higher off the ground (depending on the size of the tree, of course). You probably even know instinctively what size of thing you’re looking for based on your knowledge of the apparent angular size of a bird at a given distance you’re also instinctively able to estimate.
Ask a 6-year old to spot a bird in a tree a hundred feet away and they’ll be looking around everywhere for it simply because they don’t know what they’re looking for. An adult knows exactly what to look for: a dark shape in the branches moving separately from the motion of the branches in the wind behind it, briefly silhouetted against the sky while those same branches move, probably 30 ft or higher off the ground (depending on the size of the tree, of course). You probably even know instinctively what size of thing you’re looking for based on your knowledge of the apparent angular size of a bird at a given distance you’re also instinctively able to estimate.